more from R Kaplan / E Kaplan

Single Idea 15715

[catalogued under 6. Mathematics / A. Nature of Mathematics / 4. Using Numbers / f. Arithmetic]

Full Idea

The 'distributive' law says you will get the same result if you first add two numbers, and then multiply them by a third, or first multiply each by the third and then add the results (i.e. a (b+c) = a b + a c ).

Gist of Idea

'Distributive' laws say if you add then multiply, or multiply then add, you get the same result

Source

R Kaplan / E Kaplan (The Art of the Infinite [2003], 2 'Tablets')

Book Reference

Kaplan,R and Kaplan,E: 'The Art of the Infinite' [Penguin 2004], p.35


A Reaction

Obviously this will depend on getting the brackets right, to ensure you are indeed doing the same operations both ways.